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합금도금강판 내식성 향상을 위한 UV 경화형 유무기 하이브리드 코팅
박종원 ( Jong Won Park ),이경황 ( Kyung Hwang Lee ),나현주 ( Hyun Ju Na ),박병규 ( Byung Kyu Park ),남영섭 ( Yeung Sub Nam ),홍신협 ( Shin Hyub Hong ) 한국부식방식학회 2013 Corrosion Science and Technology Vol.12 No.1
According to its merits about high curing speed and low emission of volatile organic compounds. UV curable inorganic-organic coating technology has been developed as an alternative for toxic and careinogenic chromate-based treatments for years. It is consistently observed that ultra-thin films ofli2r excellent corrosion protection as well as paint adhesion to metals. Based on the tetra-ethylorthosilicate(TEOS) and methacrylox-ypropyl trimethoxysilane(MPTMS), inorganic sol was synthesized and formed hybrid networks with UV curable acrylic monomer. 6-hexanediol diacrylate(HDDA). trimethylolpropane triacrylate(TMPTA), pentaerylthritol triacrylate(PETA). Several methods were used to test their properties such as salt spray test. potentiodynamic measurement, tape peel test. etc. It was shown that anti-corrosive property and stability of storage were affected by the molecular ratios of inorganic and organic compounds. It was not only the stability of storage. but had a excellent anti-corrosive, paint adhesive, and anti-solvent properties in a final molar ratios of 0.6/0.04/0.86/0.005 (TEOS/MPTMS/Acetone/HNO3) and 0.08/0.106/0.081/0.02